Home / 187,912.38-281,838.56-54,761.49

Finding the Fourth Proportional to 187,912.38, 281,838.56 and 54,761.49

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Solution

The fourth proportional to 187,912.38, 281,838.56 and 54,761.49 is: 82,133.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,912.38 : 281,838.56 = 54,761.49 : x
  2. Step 2: Convert to fraction form
    187,912.38/281,838.56 = 54,761.49/x
  3. Step 3: Cross multiply
    187,912.38x = 281,838.56 × 54,761.49
  4. Step 4: Simplify right side
    187,912.38x = 15,433,899,485.05
  5. Step 5: Solve for x
    x = 15,433,899,485.05/187,912.38
  6. Step 6: Final answer
    x = 82,133.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.